Java tutorial
/* * Copyright (c) 2004-2011 Marco Maccaferri and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Marco Maccaferri - initial API and implementation */ package org.eclipsetrader.ui.internal.views; import java.text.DateFormat; import java.text.NumberFormat; import java.text.SimpleDateFormat; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import java.util.List; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IAction; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.Separator; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.layout.TableColumnLayout; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.viewers.ColumnWeightData; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.events.FocusAdapter; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.FontMetrics; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.MenuItem; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.swt.widgets.TableItem; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.IActionBars; import org.eclipse.ui.IMemento; import org.eclipse.ui.IViewSite; import org.eclipse.ui.PartInitException; import org.eclipse.ui.commands.ICommandService; import org.eclipse.ui.forms.events.HyperlinkEvent; import org.eclipse.ui.forms.events.IHyperlinkListener; import org.eclipse.ui.forms.widgets.ImageHyperlink; import org.eclipse.ui.handlers.IHandlerService; import org.eclipse.ui.part.ViewPart; import org.eclipsetrader.core.feed.IBook; import org.eclipsetrader.core.feed.IBookEntry; import org.eclipsetrader.core.feed.IFeedConnector; import org.eclipsetrader.core.feed.IFeedConnector2; import org.eclipsetrader.core.feed.IFeedIdentifier; import org.eclipsetrader.core.feed.IFeedService; import org.eclipsetrader.core.feed.IFeedSubscription2; import org.eclipsetrader.core.feed.ILastClose; import org.eclipsetrader.core.feed.ISubscriptionListener; import org.eclipsetrader.core.feed.ITodayOHL; import org.eclipsetrader.core.feed.ITrade; import org.eclipsetrader.core.feed.QuoteDelta; import org.eclipsetrader.core.feed.QuoteEvent; import org.eclipsetrader.core.instruments.ISecurity; import org.eclipsetrader.core.internal.CoreActivator; import org.eclipsetrader.core.markets.IMarket; import org.eclipsetrader.core.markets.IMarketService; import org.eclipsetrader.core.trading.IBroker; import org.eclipsetrader.core.trading.ITradingService; import org.eclipsetrader.ui.SelectionProvider; import org.eclipsetrader.ui.UIConstants; import org.eclipsetrader.ui.internal.UIActivator; import org.osgi.framework.BundleContext; import org.osgi.framework.ServiceReference; public class Level2View extends ViewPart { public static final String VIEW_ID = "org.eclipsetrader.ui.views.level2"; //$NON-NLS-1$ private static final String VIEW_TITLE_TOOLTIP = Messages.Level2View_LevelII; private IMarketService marketService; private IFeedService feedService; private Text symbol; private Label activeConnector; private Composite summaryGroup; private Label time; private Label volume; private Label last; private Label high; private Label change; private Label low; private PressureBar pressureBar; private Table table; private DateFormat timeFormatter = DateFormat.getTimeInstance(SimpleDateFormat.MEDIUM); private NumberFormat numberFormatter = NumberFormat.getInstance(); private NumberFormat priceFormatter = NumberFormat.getInstance(); private NumberFormat percentageFormatter = NumberFormat.getInstance(); private IMemento memento; private IFeedConnector2 connector; private IFeedSubscription2 subscription; private ITrade lastTrade; private ILastClose lastClose; private IBook lastBook; private IBook nextBook; private Action showMarketMakerAction; private Action hideSummaryAction; private ISubscriptionListener subscriptionListener = new ISubscriptionListener() { @Override public void quoteUpdate(QuoteEvent event) { onQuoteUpdate(event); } }; private SelectionAdapter connectionSelectionListener = new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (e.widget.getData() instanceof IFeedConnector2) { IFeedConnector2 newConnector = (IFeedConnector2) e.widget.getData(); onChangeConnector(newConnector); } } }; private Runnable bookUpdateRunnable = new Runnable() { @Override public void run() { if (table == null || table.isDisposed()) { return; } if (lastBook != nextBook) { onBookUpdate(lastBook = nextBook); } Display.getDefault().timerExec(100, bookUpdateRunnable); } }; public Level2View() { numberFormatter.setGroupingUsed(true); numberFormatter.setMinimumIntegerDigits(1); numberFormatter.setMinimumFractionDigits(0); numberFormatter.setMaximumFractionDigits(0); priceFormatter.setGroupingUsed(true); priceFormatter.setMinimumIntegerDigits(1); priceFormatter.setMinimumFractionDigits(2); priceFormatter.setMaximumFractionDigits(4); percentageFormatter.setGroupingUsed(true); percentageFormatter.setMinimumIntegerDigits(1); percentageFormatter.setMinimumFractionDigits(2); percentageFormatter.setMaximumFractionDigits(2); } /* (non-Javadoc) * @see org.eclipse.ui.part.ViewPart#init(org.eclipse.ui.IViewSite, org.eclipse.ui.IMemento) */ @Override public void init(IViewSite site, IMemento memento) throws PartInitException { super.init(site, memento); this.memento = memento; BundleContext context = CoreActivator.getDefault().getBundle().getBundleContext(); ServiceReference<IMarketService> marketServiceReference = context.getServiceReference(IMarketService.class); marketService = context.getService(marketServiceReference); ServiceReference<IFeedService> feedServiceReference = context.getServiceReference(IFeedService.class); feedService = context.getService(feedServiceReference); showMarketMakerAction = new Action("Show Market Maker", IAction.AS_CHECK_BOX) { //$NON-NLS-1$ @Override public void run() { updateViewer(); if (lastBook != null) { onBookUpdate(lastBook); } } }; hideSummaryAction = new Action("Hide Summary", IAction.AS_CHECK_BOX) { //$NON-NLS-1$ @Override public void run() { summaryGroup.setVisible(!isChecked()); ((GridData) summaryGroup.getLayoutData()).exclude = isChecked(); summaryGroup.getParent().layout(); } }; if (memento != null) { hideSummaryAction.setChecked("true".equals(memento.getString("hide-summary"))); //$NON-NLS-1$ //$NON-NLS-2$ } IActionBars actionBars = site.getActionBars(); IMenuManager menuManager = actionBars.getMenuManager(); menuManager.add(showMarketMakerAction); menuManager.add(new Separator()); menuManager.add(hideSummaryAction); actionBars.updateActionBars(); site.setSelectionProvider(new SelectionProvider()); } /* (non-Javadoc) * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite) */ @Override public void createPartControl(Composite parent) { Composite content = new Composite(parent, SWT.NONE); GridLayout gridLayout = new GridLayout(1, false); gridLayout.marginWidth = gridLayout.marginHeight = 0; gridLayout.verticalSpacing = 0; content.setLayout(gridLayout); GC gc = new GC(content); gc.setFont(JFaceResources.getDialogFont()); FontMetrics fontMetrics = gc.getFontMetrics(); gc.dispose(); Composite group = new Composite(content, SWT.NONE); group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); group.setLayout(new GridLayout(4, false)); Label label = new Label(group, SWT.NONE); label.setText(Messages.Level2View_Symbol); symbol = new Text(group, SWT.BORDER); symbol.setLayoutData(new GridData(Dialog.convertWidthInCharsToPixels(fontMetrics, 15), SWT.DEFAULT)); symbol.addFocusListener(new FocusAdapter() { @Override public void focusLost(FocusEvent e) { onSetSymbol(); } }); symbol.addSelectionListener(new SelectionAdapter() { @Override public void widgetDefaultSelected(SelectionEvent e) { onSetSymbol(); } }); final ImageHyperlink connectorButton = new ImageHyperlink(group, SWT.NONE); connectorButton.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false)); connectorButton.setImage(UIActivator.getDefault().getImageRegistry().get(UIConstants.TOOLBAR_ARROW_RIGHT)); connectorButton.setToolTipText(Messages.Level2View_SelectDataSource); connectorButton.addHyperlinkListener(new IHyperlinkListener() { private Menu dropDownMenu; @Override public void linkActivated(HyperlinkEvent e) { if (dropDownMenu != null) { dropDownMenu.dispose(); } dropDownMenu = new Menu(connectorButton); List<IFeedConnector> c = Arrays.asList(feedService.getConnectors()); Collections.sort(c, new Comparator<IFeedConnector>() { @Override public int compare(IFeedConnector o1, IFeedConnector o2) { return o1.getName().compareTo(o2.getName()); } }); for (IFeedConnector connector : c) { if (connector instanceof IFeedConnector2) { MenuItem menuItem = new MenuItem(dropDownMenu, SWT.CHECK); menuItem.setText(connector.getName()); menuItem.setData(connector); menuItem.setSelection(Level2View.this.connector == connector); menuItem.addSelectionListener(connectionSelectionListener); } } dropDownMenu.setVisible(true); } @Override public void linkEntered(HyperlinkEvent e) { } @Override public void linkExited(HyperlinkEvent e) { } }); activeConnector = new Label(group, SWT.NONE); activeConnector.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); summaryGroup = createSummary(content); if (hideSummaryAction != null) { summaryGroup.setVisible(!hideSummaryAction.isChecked()); ((GridData) summaryGroup.getLayoutData()).exclude = hideSummaryAction.isChecked(); } pressureBar = new PressureBar(content, SWT.NONE); GridData gridData = new GridData(SWT.FILL, SWT.CENTER, true, false); gridData.heightHint = 16; pressureBar.getControl().setLayoutData(gridData); createBookViewer(content); if (memento != null) { String s = memento.getString("symbol"); //$NON-NLS-1$ if (s != null) { symbol.setText(s); ISecurity security = getSecurityFromSymbol(s); if (security != null) { getSite().getSelectionProvider().setSelection(new StructuredSelection(security)); setPartName(security.getName()); setTitleToolTip(NLS.bind(VIEW_TITLE_TOOLTIP, new Object[] { security.getName() })); } } String id = memento.getString("connector"); //$NON-NLS-1$ if (id != null) { IFeedConnector connector = feedService.getConnector(id); if (connector == null) { connector = CoreActivator.getDefault().getDefaultConnector(); } if (connector instanceof IFeedConnector2) { this.connector = (IFeedConnector2) connector; activeConnector.setText(this.connector.getName()); } } if (s != null && connector != null) { subscription = this.connector.subscribeLevel2(s); subscription.addSubscriptionListener(subscriptionListener); lastClose = subscription.getLastClose(); lastTrade = subscription.getTrade(); update(subscription.getTodayOHL()); update(); } } Display.getDefault().timerExec(100, bookUpdateRunnable); } /* (non-Javadoc) * @see org.eclipse.ui.part.ViewPart#saveState(org.eclipse.ui.IMemento) */ @Override public void saveState(IMemento memento) { memento.putString("symbol", symbol.getText()); //$NON-NLS-1$ if (connector != null) { memento.putString("connector", connector.getId()); //$NON-NLS-1$ } if (hideSummaryAction.isChecked()) { memento.putString("hide-summary", "true"); //$NON-NLS-1$ //$NON-NLS-2$ } super.saveState(memento); } /* (non-Javadoc) * @see org.eclipse.ui.part.WorkbenchPart#setFocus() */ @Override public void setFocus() { symbol.setFocus(); } /* (non-Javadoc) * @see org.eclipse.ui.part.WorkbenchPart#dispose() */ @Override public void dispose() { if (subscription != null) { subscription.removeSubscriptionListener(subscriptionListener); subscription.dispose(); } BundleContext context = CoreActivator.getDefault().getBundle().getBundleContext(); ServiceReference<IMarketService> marketServiceReference = context.getServiceReference(IMarketService.class); context.ungetService(marketServiceReference); ServiceReference<IFeedService> feedServiceReference = context.getServiceReference(IFeedService.class); context.ungetService(feedServiceReference); super.dispose(); } protected void createBookViewer(Composite parent) { Composite content = new Composite(parent, SWT.NONE); content.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); TableColumnLayout tableLayout = new TableColumnLayout(); content.setLayout(tableLayout); table = new Table(content, SWT.MULTI | SWT.FULL_SELECTION | SWT.NO_FOCUS | SWT.V_SCROLL); table.setHeaderVisible(true); table.setLinesVisible(false); table.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { table.deselectAll(); } }); ICommandService commandService = (ICommandService) getSite().getService(ICommandService.class); IHandlerService handlerService = (IHandlerService) getSite().getService(IHandlerService.class); new Level2QuickTradeDecorator(table, commandService, handlerService); updateViewer(); } protected void updateViewer() { TableColumnLayout tableLayout = (TableColumnLayout) table.getParent().getLayout(); int columnIndex = 0; TableColumn tableColumn; if (showMarketMakerAction.isChecked()) { tableColumn = columnIndex < table.getColumnCount() ? table.getColumn(columnIndex) : new TableColumn(table, SWT.CENTER); tableColumn.setText(Messages.Level2View_MM); tableLayout.setColumnData(tableColumn, new ColumnWeightData(5)); columnIndex++; } tableColumn = columnIndex < table.getColumnCount() ? table.getColumn(columnIndex) : new TableColumn(table, SWT.CENTER); tableColumn.setText(Messages.Level2View_Number); tableLayout.setColumnData(tableColumn, new ColumnWeightData(showMarketMakerAction.isChecked() ? 5 : 6)); columnIndex++; tableColumn = columnIndex < table.getColumnCount() ? table.getColumn(columnIndex) : new TableColumn(table, SWT.CENTER); tableColumn.setText(Messages.Level2View_Qty); tableLayout.setColumnData(tableColumn, new ColumnWeightData(showMarketMakerAction.isChecked() ? 22 : 24)); columnIndex++; tableColumn = columnIndex < table.getColumnCount() ? table.getColumn(columnIndex) : new TableColumn(table, SWT.CENTER); tableColumn.setText(Messages.Level2View_Bid); tableLayout.setColumnData(tableColumn, new ColumnWeightData(showMarketMakerAction.isChecked() ? 18 : 20)); columnIndex++; tableColumn = columnIndex < table.getColumnCount() ? table.getColumn(columnIndex) : new TableColumn(table, SWT.CENTER); tableColumn.setText(Messages.Level2View_Ask); tableLayout.setColumnData(tableColumn, new ColumnWeightData(showMarketMakerAction.isChecked() ? 18 : 20)); columnIndex++; tableColumn = columnIndex < table.getColumnCount() ? table.getColumn(columnIndex) : new TableColumn(table, SWT.CENTER); tableColumn.setText(Messages.Level2View_Qty); tableLayout.setColumnData(tableColumn, new ColumnWeightData(showMarketMakerAction.isChecked() ? 21 : 24)); columnIndex++; tableColumn = columnIndex < table.getColumnCount() ? table.getColumn(columnIndex) : new TableColumn(table, SWT.CENTER); tableColumn.setText(Messages.Level2View_Number); tableLayout.setColumnData(tableColumn, new ColumnWeightData(showMarketMakerAction.isChecked() ? 5 : 6)); columnIndex++; if (showMarketMakerAction.isChecked()) { tableColumn = columnIndex < table.getColumnCount() ? table.getColumn(columnIndex) : new TableColumn(table, SWT.CENTER); tableColumn.setText(Messages.Level2View_MM); tableLayout.setColumnData(tableColumn, new ColumnWeightData(5)); columnIndex++; } while (table.getColumnCount() > columnIndex) { table.getColumn(table.getColumnCount() - 1).dispose(); } table.getParent().layout(); } protected Composite createSummary(Composite parent) { Composite content = new Composite(parent, SWT.NONE); content.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); GridLayout gridLayout = new GridLayout(4, false); gridLayout.horizontalSpacing = gridLayout.horizontalSpacing * 2; content.setLayout(gridLayout); Label label = new Label(content, SWT.SEPARATOR | SWT.HORIZONTAL); label.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 4, 1)); label = new Label(content, SWT.NONE); label.setText(Messages.Level2View_Time); time = new Label(content, SWT.RIGHT); time.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); label = new Label(content, SWT.NONE); label.setText(Messages.Level2View_Volume); volume = new Label(content, SWT.RIGHT); volume.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); label = new Label(content, SWT.NONE); label.setText(Messages.Level2View_LastPrice); last = new Label(content, SWT.RIGHT); last.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); label = new Label(content, SWT.NONE); label.setText(Messages.Level2View_High); high = new Label(content, SWT.RIGHT); high.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); label = new Label(content, SWT.NONE); label.setText(Messages.Level2View_Change); change = new Label(content, SWT.RIGHT); change.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); label = new Label(content, SWT.NONE); label.setText(Messages.Level2View_Low); low = new Label(content, SWT.RIGHT); low.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); return content; } protected void updateBid(TableItem tableItem, IBookEntry entry) { int columnIndex = 0; if (entry != null) { if (showMarketMakerAction.isChecked()) { String s = entry.getMarketMaker() != null ? entry.getMarketMaker() : ""; //$NON-NLS-1$ if (!s.equals(tableItem.getText(columnIndex))) { tableItem.setText(columnIndex, s); } columnIndex++; } String s = numberFormatter.format(entry.getProposals()); if (!s.equals(tableItem.getText(columnIndex))) { tableItem.setText(columnIndex, s); } columnIndex++; s = numberFormatter.format(entry.getQuantity()); if (!s.equals(tableItem.getText(columnIndex))) { tableItem.setText(columnIndex, s); } columnIndex++; s = priceFormatter.format(entry.getPrice()); if (!s.equals(tableItem.getText(columnIndex))) { tableItem.setText(columnIndex, s); } columnIndex++; } else { if (showMarketMakerAction.isChecked()) { tableItem.setText(columnIndex, ""); //$NON-NLS-1$ tableItem.setBackground(columnIndex++, null); } tableItem.setText(columnIndex, ""); //$NON-NLS-1$ tableItem.setBackground(columnIndex++, null); tableItem.setText(columnIndex, ""); //$NON-NLS-1$ tableItem.setBackground(columnIndex++, null); tableItem.setText(columnIndex, ""); //$NON-NLS-1$ tableItem.setBackground(columnIndex++, null); } tableItem.setData("bid", entry); //$NON-NLS-1$ } protected void updateAsk(TableItem tableItem, IBookEntry entry) { int columnIndex = tableItem.getParent().getColumnCount() - 1; if (entry != null) { if (showMarketMakerAction.isChecked()) { String s = entry.getMarketMaker() != null ? entry.getMarketMaker() : ""; //$NON-NLS-1$ if (!s.equals(tableItem.getText(columnIndex))) { tableItem.setText(columnIndex, s); } columnIndex--; } String s = numberFormatter.format(entry.getProposals()); if (!s.equals(tableItem.getText(columnIndex))) { tableItem.setText(columnIndex, s); } columnIndex--; s = numberFormatter.format(entry.getQuantity()); if (!s.equals(tableItem.getText(columnIndex))) { tableItem.setText(columnIndex, s); } columnIndex--; s = priceFormatter.format(entry.getPrice()); if (!s.equals(tableItem.getText(columnIndex))) { tableItem.setText(columnIndex, s); } columnIndex--; } else { if (showMarketMakerAction.isChecked()) { tableItem.setText(columnIndex, ""); //$NON-NLS-1$ tableItem.setBackground(columnIndex--, null); } tableItem.setText(columnIndex, ""); //$NON-NLS-1$ tableItem.setBackground(columnIndex--, null); tableItem.setText(columnIndex, ""); //$NON-NLS-1$ tableItem.setBackground(columnIndex--, null); tableItem.setText(columnIndex, ""); //$NON-NLS-1$ tableItem.setBackground(columnIndex--, null); } tableItem.setData("ask", entry); //$NON-NLS-1$ } protected void onBookUpdate(IBook book) { IBookEntry[] bidEntries = book.getBidProposals(); IBookEntry[] askEntries = book.getAskProposals(); int rows = Math.max(bidEntries.length, askEntries.length); table.setRedraw(false); boolean doLayout = rows != table.getItemCount(); try { for (int rowIndex = 0; rowIndex < rows; rowIndex++) { TableItem tableItem = rowIndex < table.getItemCount() ? table.getItem(rowIndex) : new TableItem(table, SWT.NONE); updateBid(tableItem, rowIndex < bidEntries.length ? bidEntries[rowIndex] : null); updateAsk(tableItem, rowIndex < askEntries.length ? askEntries[rowIndex] : null); } while (table.getItemCount() > rows) { table.getItem(table.getItemCount() - 1).dispose(); } } finally { table.setRedraw(true); } if (doLayout) { table.layout(); table.getParent().layout(); table.layout(); table.getParent().layout(); } long[] leftWeights = new long[Math.min(bidEntries.length, 5)]; for (int i = 0; i < leftWeights.length; i++) { leftWeights[i] = bidEntries[i] != null && bidEntries[i].getQuantity() != null ? bidEntries[i].getQuantity() : 0; } long[] rightWeights = new long[Math.min(askEntries.length, 5)]; for (int i = 0; i < rightWeights.length; i++) { rightWeights[i] = askEntries[i] != null && askEntries[i].getQuantity() != null ? askEntries[i].getQuantity() : 0; } pressureBar.setWeights(leftWeights, rightWeights); } protected void onSetSymbol() { if (subscription != null && subscription.getSymbol().equals(symbol.getText())) { return; } if (connector != null) { if (subscription != null) { subscription.removeSubscriptionListener(subscriptionListener); subscription.dispose(); } subscription = connector.subscribeLevel2(symbol.getText()); subscription.addSubscriptionListener(subscriptionListener); lastClose = subscription.getLastClose(); lastTrade = subscription.getTrade(); update(subscription.getTodayOHL()); update(); IBook book = subscription.getBook(); if (book != null) { onBookUpdate(book); } ISecurity security = getSecurityFromSymbol(symbol.getText()); if (security != null) { getSite().getSelectionProvider().setSelection(new StructuredSelection(security)); setPartName(security.getName()); setTitleToolTip(NLS.bind(VIEW_TITLE_TOOLTIP, new Object[] { security.getName() })); } } } protected void onChangeConnector(IFeedConnector2 newConnector) { if (newConnector != connector) { if (connector != null && subscription != null) { subscription.removeSubscriptionListener(subscriptionListener); subscription.dispose(); subscription = null; } connector = newConnector; activeConnector.setText(connector != null ? connector.getName() : ""); //$NON-NLS-1$ if (connector != null && !symbol.getText().equals("")) { //$NON-NLS-1$ subscription = connector.subscribeLevel2(symbol.getText()); subscription.addSubscriptionListener(subscriptionListener); lastClose = subscription.getLastClose(); lastTrade = subscription.getTrade(); update(subscription.getTodayOHL()); update(); IBook book = subscription.getBook(); if (book != null) { onBookUpdate(book); } } } } public void setSecurity(ISecurity security) { IFeedConnector connector = null; IMarket[] market = marketService.getMarkets(); for (int i = 0; i < market.length; i++) { if (market[i].hasMember(security)) { connector = market[i].getLiveFeedConnector(); break; } } if (connector == null) { connector = CoreActivator.getDefault().getDefaultConnector(); } if (connector instanceof IFeedConnector2) { this.connector = (IFeedConnector2) connector; } if (this.connector != null) { activeConnector.setText(this.connector.getName()); if (subscription != null) { subscription.removeSubscriptionListener(subscriptionListener); subscription.dispose(); } IFeedIdentifier feedIdentifier = (IFeedIdentifier) security.getAdapter(IFeedIdentifier.class); if (feedIdentifier != null) { subscription = this.connector.subscribeLevel2(feedIdentifier); subscription.addSubscriptionListener(subscriptionListener); symbol.setText(subscription.getSymbol()); lastClose = subscription.getLastClose(); lastTrade = subscription.getTrade(); update(subscription.getTodayOHL()); update(); IBook book = subscription.getBook(); if (book != null) { onBookUpdate(book); } } } getSite().getSelectionProvider().setSelection(new StructuredSelection(security)); } protected void onQuoteUpdate(final QuoteEvent event) { Display.getDefault().asyncExec(new Runnable() { @Override public void run() { if (table.isDisposed()) { return; } QuoteDelta[] delta = event.getDelta(); for (int i = 0; i < delta.length; i++) { if (delta[i].getNewValue() instanceof IBook) { nextBook = (IBook) delta[i].getNewValue(); } if (delta[i].getNewValue() instanceof ITrade) { lastTrade = (ITrade) delta[i].getNewValue(); update(); } if (delta[i].getNewValue() instanceof ITodayOHL) { ITodayOHL todayOHL = (ITodayOHL) delta[i].getNewValue(); update(todayOHL); } if (delta[i].getNewValue() instanceof ILastClose) { lastClose = (ILastClose) delta[i].getNewValue(); update(); } } } }); } protected void update() { time.setText( lastTrade != null && lastTrade.getTime() != null ? timeFormatter.format(lastTrade.getTime()) : ""); //$NON-NLS-1$ last.setText(lastTrade != null && lastTrade.getPrice() != null ? priceFormatter.format(lastTrade.getPrice()) : ""); //$NON-NLS-1$ volume.setText( lastTrade != null && lastTrade.getVolume() != null ? numberFormatter.format(lastTrade.getVolume()) : ""); //$NON-NLS-1$ if (lastTrade != null && lastClose != null && lastClose.getPrice() != null && lastTrade.getPrice() != null) { double changePercent = (lastTrade.getPrice() - lastClose.getPrice()) / lastClose.getPrice() * 100.0; change.setText(NLS.bind("{0}{1}%", new Object[] { //$NON-NLS-1$ changePercent < 0 ? "-" : changePercent > 0 ? "+" : "", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ percentageFormatter.format(Math.abs(changePercent)), })); } else { change.setText(""); //$NON-NLS-1$ } } protected void update(ITodayOHL todayOHL) { high.setText( todayOHL != null && todayOHL.getHigh() != null ? priceFormatter.format(todayOHL.getHigh()) : ""); //$NON-NLS-1$ low.setText(todayOHL != null && todayOHL.getLow() != null ? priceFormatter.format(todayOHL.getLow()) : ""); //$NON-NLS-1$ } protected ISecurity getSecurityFromSymbol(String symbol) { ISecurity security = null; BundleContext context = UIActivator.getDefault().getBundle().getBundleContext(); ServiceReference serviceReference = context.getServiceReference(ITradingService.class.getName()); if (serviceReference != null) { ITradingService service = (ITradingService) context.getService(serviceReference); IBroker[] broker = service.getBrokers(); for (int i = 0; i < broker.length; i++) { security = broker[i].getSecurityFromSymbol(symbol); if (security != null) { break; } } context.ungetService(serviceReference); } return security; } }